

<template>
<div>
  <h1 v-goAllRed >这是One组件</h1>
  <button @click="showA">查看插件的a功能</button>
  <All/>
</div>
</template>

<script>

export default {
  name:"One",
  methods:{
    showA(){
      console.log(this.a);
    }
  }
};

</script>


<style>
</style>